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VUE D'ENSEMBLE D'UN CHOIX DE PERFORATIONS A TROUS RONDS
Formules utiles
Introduction
Perforation à trous ronds
Formules
Calcul
Vue d'ensemble
Perforation à trous carrés
Formules
Calcul
Vue d'ensemble
Télécharger
Télécharger les formules utiles
A0
open screening area
w
hole width
t
pitch
more:
symbols
Hole width
w (mm)
Pitch
t (mm)
Hole Pattern
Ao (%)
0.5
1.0
staggered
22.5
0.6
1.25
staggered
20.9
0.8
1.5; 1.75
staggered
25.8; 19
1.0
1.75; 2.0
staggered
29.6; 22.6
1.5
2.5; 3.0
staggered
32.5; 22.6
2.0
3.5
staggered
29.6
2.5
4.5; 5.0
staggered
27.5; 22.6
3.0
5.0; 6.0
staggered
32, 22.6
4.0
6.0; 7.0
staggered
40.3;29.6
4.5
15
straight
5.0
8.0
staggered
35.4
6.0
9.0
staggered
40.3
8.0
12
staggered
40.3
10
15
staggered
40.3
12
16; 18
staggered
51; 40.3
15
20, 23
staggered
51; 38.6
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